# Jan Grzesik: Engineering Team Lead at Checkly

> Jan Grzesik is an Engineering Team Lead at Checkly, with experience in leading software development teams and driving innovation. Checkl his articles.

Source: https://www.checklyhq.com/blog/author/jan/

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# Jan Grzesik

Engineering Team Lead

August 11, 2024

## When to violate coding best practices

Jan Grzesik

Nočnica Mellifera

[Development](https://www.checklyhq.com/blog/tag/development/)[Performance](https://www.checklyhq.com/blog/tag/performance/)

July 11, 2024

## How we saved $5k a month with a single Grafana Query

Jan Grzesik

[Development](https://www.checklyhq.com/blog/tag/development/)[Performance](https://www.checklyhq.com/blog/tag/performance/)

May 31, 2024

## Saving Three Months of Latency with a Single Trace: Coralogix and OpenTelemetry on Checkly

Jan Grzesik

[Open Source](https://www.checklyhq.com/blog/tag/open-source/)[OpenTelemetry](https://www.checklyhq.com/blog/tag/opentelemetry/)

December 19, 2023

## The Advent of Monitoring, Day 12: Behind the Scenes: How Checkly Is Using a Smoke Test Matrix to Tame Variant Complexity

Jan Grzesik

[Monitoring as Code (MaC)](https://www.checklyhq.com/blog/tag/mac/)

June 21, 2023

## Why use Playwright and Checkly for Synthetic Monitoring?

Jan Grzesik

[Javascript](https://www.checklyhq.com/blog/tag/javascript/)[Playwright](https://www.checklyhq.com/blog/tag/playwright/)[Synthetic Monitoring](https://www.checklyhq.com/blog/tag/synthetic-monitoring/)

February 28, 2023

## Announcing the General Availability of Playwright Test Support

Jan Grzesik

[Announcements](https://www.checklyhq.com/blog/tag/announcements/)[Playwright](https://www.checklyhq.com/blog/tag/playwright/)[Product](https://www.checklyhq.com/blog/tag/product/)

September 23, 2020

## Active monitoring with Playwright on Checkly 🎭

Jan Grzesik

Batuhan Icoz

[Playwright](https://www.checklyhq.com/blog/tag/playwright/)[puppeteer](https://www.checklyhq.com/blog/tag/puppeteer/)[Announcements](https://www.checklyhq.com/blog/tag/announcements/)